Question

A student of mass 50 kg swings on a playground swing, which is very light compared to the student. A friend releases the seat of the swing from rest at a hieght of 1 m above the lowest point of of the motion. The student swings down and, at the lowest point, grabs a jug of water of mass 4 kg. the jug is initially at rest on a small table to the right of the swing, so it does not move vertically as the student grabs it. the student keeps swinging forward while holding the jug, and the seat reaches a maximum height of H above the lowest point. air resisitance and friction are negligible.

Answer 1

A) Indicate whether H is greater than, less than, or equal to 1 m. Justify your answer qualitatively, with no equations or calculations.

Answer 2

H will b less than 1m

Answer 3

Let the swinging student is a bob of a pendulum

Answer 4

When the bob is 50kg, the height is 1m

Answer 5

When the bob is 50+4=54kg , the height is H nd this H will b lower than 1m

Answer 6

Because 54 kg is greater 50kg

Answer 7

Feel free to ask for more clarification